[Lxc-users] LXC- ARM6 RaspberryPI Fedora core 14

[Benito]

Hi Again

Just a follow up question, I had a chat today with an ArchArm user in 
the IRC chat channel, and
he said that it is impossible to run a x86 container on Lxc with an ARM 
host . Is this true ?
Because if it is, lxc doesn't really help with the Pi at all .


On 04/03/2013 11:10 PM, Michael H. Warfield wrote:
> Cross posting over to the developers list, since this is definitely a
> developer issue...
>
> On Wed, 2013-04-03 at 11:29 +0200, Benito wrote:
>> Hi There
>>
>> I've been working on a project on the Raspberry PI , where we want to
>> run a 32-bit /64-bit fedora 14 container
>> on the RaspberryPi . I've had success with LXC on a Mint14 64-bit (which
>> is Ubuntu 12 based I believe) host  with Fedora 14 - 64bit container  (
>> Downloaded FC14 with the template -t parameter below..,, It was as easy
>> as running :
>>
>> apt-get install yum
>> lxc-create -t fedora -n fedora14
> Ok...  Got the latest lxc compiled on my Raspberry Pi.  There seem to be
> 4 things broken with the "fedora" template on the RPi, two of which are
> peculiar to running on the Fedora Remix but one big one will bite
> Raspbian as well.  One is a version/config issue with the Fedora
> container for supporting systemd in a container.
>
> 1) The architecture is reported by the OS as armv6l but this fails.  The
> arm processors should be mapped to arch = arm.  That means adding an if
> check in the template.  That applies to both Raspbian and Fedora Remix
> hosts.  I don't know of other architechtures are similarly affected.
>
> 2) Running under Fedora Remix 17, the template can not find the release
> information and doesn't recognize it as a Fedora family.  Instead of
> being in /etc/fedora-release, it's
> in /etc/raspberrypi-fedora-remix-release but could also be extracted
> from /etc/redhat-release, which is a symlink.
>
> 3) On Fedora Remix, if it finds the release (I added a symlink to test),
> it's extracting the wrong field for the version number from the release
> file.
>
> This is vanilla Fedora 17:
>
> Fedora release 17 (Beefy Miracle)
>
> This is the RPi Fedora Remix 17:
>
> Fedora remix release 17 (Raspberrypi Fedora Remix)
>
> The template script is extracting the third field (word) and is one off
> in this case.  That also causes the yum downloads to bomb.
>
> Both points 2 & 3 can be circumvented by including the -R release to the
> template like this:
>
> lxc-create -t fedora -n Fedora17 -- -R 17
>
> But that still leaves the bad architecture which then causes the yum
> downloads to blow up.  I added this to the template to get it to work
> and it's building a container now.
>
>    if [ "$arch" = "i686" ]; then
>        arch=i386
>    fi
>
> + if [ "$arch" = "armv6l" ]; then
> +     arch=arm
> + fi
>
> That should probably be turned into a case statement.
>
> Detecting the correct release file is probably going to be a little ugly
> and, maybe, should fall back to /etc/redhat-release if fedora-release is
> not present, detect the keyword "Fedora" and skip the optional word
> "Remix".
>
> 4) Finally, there's going to need to be a version check in there to add
> "autodev = 1" to container configs for versions greater than 14 or
> systemd in the container will cause problems for the host system.
>
> Regards,
> Mike
>
>> Now I've been struggling with this for a few weeks , Compiled an LXC
>> friendly kernel on the Raspbian OS, - Debian wheezy ARM , also tried
>> with Fedora ARM remix.
>> Is it even possible to run a fedora14 container on ARM (raspberry pi)
>> architecture ?
>> If so can anyone point me in the right direction ?
>>
>> Regards
>> Benito
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Minimize network downtime and maximize team effectiveness.
>> Reduce network management and security costs.Learn how to hire
>> the most talented Cisco Certified professionals. Visit the
>> Employer Resources Portal
>> http://www.cisco.com/web/learning/employer_resources/index.html
>> _______________________________________________
>> Lxc-users mailing list
>> Lxc-users at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/lxc-users
>>